Exelon must address nuclear power plant's flood response plan

The U.S. Nuclear Regulatory Commission (NRC) sent a letter to Exelon Corp. (NYSE: EXC) to address the NRC’s concerns with the 1,700 MW Dresden Nuclear Station’s response plan for external flooding events. The two-unit plant is located in Morris, Ill.

NRC inspectors identified multiple areas of concern during recent inspections conducted in response to the disaster at the Fukushima Daiichi nuclear power plant in Japan. The issues pertain to the plant’s plan to respond to a Probable Maximum Flood, which is a hypothetical flooding level that represents the largest conceivable flood from a combination of the most severe meteorological and hydrologic conditions. Such conditions are highly improbably and have never been known to happen in the area. The issues with the flood plan do not represent an immediate safety issue but are an area where NRC would like additional information.

The two main areas of concerns with the flood response plan are: The quality and viability of the procedure, and the availability and capability of equipment specified in the response plan to fulfill their intended functions.

Dresden was originally licensed for operation in 1966 for a flood value of 506.4 feet above mean sea level. The reactor and other plant structures were constructed at 517 feet above mean sea level, 10 feet above historic flood levels. The NRC changed flood design criteria in 1982, and Dresden developed a response plan to address the disparity between the original and the revised design bases for flooding.

Subscribe to Nuclear Power International magazine

Sponsored by FLSmidth

Related Articles

 Iran & Russia to produce nuclear fuel

Iran & Russia to produce nuclear fuel

Iran and Russia signed a deal to jointly produce nuclear fuel in Iran.

 Kansas' largest electric company seeking $152M rate increase

Kansas' largest electric company seeking $152M rate increase

The largest supplier of electricity in Kansas is asking state regulators to increase its rates by $152 million annually to cover upgrades at power plants and other costs.

Follow Power Engineering on Twitter
Latest News
GE names two to leadership positions GE Power & Water Global Research

GE names two to leadership positions

GE (NYSE: GE) announced the appointment of two new company officers.

Preferred bidders picked for new UK nuclear power project

EDF Energy announced more preferred bidders for construction of the Hinkley Point C nuclear p...

Nuclear unit returns to service after water leak repaired

The 600-MW Fort Calhoun nuclear power plant in Nebraska was returned to full power after a le...

Exxon profit falls by half but production rises

Exxon Mobil Corp. profit dropped by half in the second quarter on sharply lower oil and gas p...

NY to give low-cost electricity to Amazon, Bausch & Lomb

New York state is giving low-cost electricity to 15 businesses around the state as part of a ...
TEPCO executives face charges in Fukushima accident

3 ex-TEPCO execs to face criminal charges

A Japanese judicial committee has decided that three former utility executives should face cr...
07/29 Henry Hub Average Natural Gas Spot Prices

07/29 Henry Hub Average Natural Gas Spot Prices

The Henry Hub is the pricing point for natural gas futures contracts traded on the New York M...

GE wind turbines to power British Columbia’s largest wind farm

GE today confirmed it will supply Pattern Development with 61 wind turbines for its 180-megaw...

Power Engineering Current Issue

02/01/2015
Volume 119, Issue 2
1502PE-cover
Products Showcase
Dynamic Fluoride Ion cleaning DFIC of industrial natural gas turbines Hi-Tech Furnace Systems

Dynamic Fluoride Ion Cleaning of IGT Parts

The Dynamic Fluoride Ion Cleaning (DFIC) Process from Hi-Tech Furnace Systems is able to clean deep, narrow cracks of oxides by cycling between negative, atmospheric, and positive pressure.

Archived Articles

2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015

Power Industry Wire News

Vantage Drilling Company Schedules Second Quarter 2015 Earnings Release Date and Conference Call

Vantage Drilling Company Schedules Second Quarter 2015 Earnings Release Date and Confer...

EnerJex Resources Declares Monthly Cash Dividend on 10% Series A Preferred Stock

EnerJex Resources Declares Monthly Cash Dividend on 10% Series A Preferred Stock

FX Energy Schedules Second Quarter 2015 Financial and Operating Results Conference Call

FX Energy Schedules Second Quarter 2015 Financial and Operating Results Conference Call

Scorpio Bulkers Inc. Announces Purchase of 1,050,000 Common Shares by Scorpio Service Holdings Limited

Scorpio Bulkers Inc. Announces Purchase of 1,050,000 Common Shares by Scorpio Service H...

Magellan Petroleum Regains Compliance With NASDAQ Listing Requirements

Magellan Petroleum Regains Compliance With NASDAQ Listing Requirements

Power Engineering

Article Archives for Power Engineering Magazine

Continuing Education

Professional Development Hours

To access a course listing associated to a specific topic listed below, click on the topic of choice from the list below.

Latest Energy Jobs

View more Job Listings >>